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High-yield cultivation technology for rice population with stereo layered spikes

A population and three-dimensional technology, applied in rice cultivation, plant cultivation, botanical equipment and methods, etc., can solve the problems of increasing effective tillering, high yield and stable yield of rice, and achieve the effect of improving plant structure and increasing ear formation rate

Active Publication Date: 2016-01-27
GUANGZHOU NANGUO AGRI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in large-scale rice production, growth regulator inhibitors are used in the early stage, and growth regulator accelerators are used in the later stage to relieve the inhibitory effect. Stratification, thereby increasing effective tillering of rice, promoting large ears, high yield and stable yield, and comprehensive high-yield cultivation techniques for population regulation have not yet been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The variety Duojixin 15 is composed of three components with exactly the same growth period, of which component 1 has a height of 70 cm at the top of the ear, component 2 has a height of 95 cm at the top of the ear, and component 3 has a height of 95 cm at the top of the ear. Mix the three components in equal amounts, and sow the seeds evenly on the seedling ground at a seed rate of 3 kg per mu. Spray 0.1% pleiotrope when the seedlings grow to the seedling needle stage. Seedling shovels shovel the seedlings and throw them directly. Spray 0.4% paclobutrazol at the early stage of tillering, with a dosage of 850 grams per hectare; spray 25ppm gibberellin at the seedling stage, with a dosage of 5 grams per hectare. If it rains, add 1 % water-based silicone oil 10 ml, mix well and spray. Finally, the actual yield was 653 kilograms per mu. For the control without any treatment, the amount of seed per mu was 6 kilograms to obtain the same area of ​​seedlings for throwing seed...

Embodiment 2

[0027] The variety Duojixin 11 is composed of 2 components, of which component 1 has a height of 65 cm at the top of the panicle, and component 2 has a height of 91 cm at the top of the panicle. The growth period of component 2 is 5 days later than that of component 1. Therefore, with the amount of 2.5 kilograms per mu, sow component 2 5 days in advance, and then sow component 1 after 5 days. After 25 days, all the seedlings were picked up, mixed and thrown, and finally the actual yield was 602 kilograms per mu. Fraction 1 grown alone yielded 495 kg and fraction 2 yielded 510 kg, with an average yield of 503 kg. Invented by using ear position stratified population technology, the yield can be increased by 19.6%.

Embodiment 3

[0029] The variety Duojixin 16 is composed of 2 components, of which component 1 has an ear height of 85 cm, and component 2 has an ear height of 95 cm, and component 2 is 10 cm higher than component 1. 2-4 days late ripening, it is necessary to properly increase the height of component 2, increase the layering effect of the ear position, and promote its proper earing in advance. Therefore, component 2 was sprayed with 10ppm gibberellin at the seedling stage, and component 1 was left untreated. After 25 days, all the seedlings were picked up, mixed and thrown, and finally the actual yield was 615 kilograms per mu. Fraction 1 grown alone yielded 565 kg and fraction 2 yielded 537 kg, with an average yield of 551 kg. Using stratified ear position population and using regulator technology, the yield can be increased by 11.6%.

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Abstract

The invention provides high-yield cultivation technology for rice population with stereo layered spikes. The high-yield cultivation technology comprises following steps: setting up population with stereo layered spikes, and cultivating multi-genotype population varieties with layered spikes in the same mature phase; and obtaining high-yield cultivation technology for layered spikes in the same mature phase by means of sowing by stages and control of growth regulators. The high-yield cultivation technology for rice population with stereo layered spikes has following beneficial effects: by means of coordinated growth space of multi-genotype population with layered spikes and complete utilization of light and temperature conditions, plant heights are controlled and a growth period is regulated by utilizing different time control periods of raising rice seedlings and slinging seedlings and seeding rice based on dialectical relationships among growth inhibitors and accelerants; control over ineffective tillering is given into consideration in order to increase productive tiller percentage; large spikes, multiple spikes, high yield and stable yield are achieved; the yield of spikes is increased by more than 10%; and the technology can be extensively applied to production of rice with different kinds.

Description

technical field [0001] The invention relates to high-yield cultivation and population structure control technology of rice. Specifically, it refers to the regulation of ear position hierarchical structure and high-yield regulation technology. Background technique [0002] At present, rice varieties at home and abroad are all single-genotype varieties, and there is no difference in ear position level, and they are single in terms of utilizing the ecological conditions of light and temperature in the population. If varieties with different panicle positions can be used under the same growth period conditions, the growth space will be fully coordinated, mutual shading will be prevented, the utilization rate of light and temperature resources will be improved, and the yield potential will be increased. [0003] Paclobutrazol is a triazole plant growth regulator successfully developed in the 1980s and an inhibitor of endogenous gibberellin synthesis. It can also increase the ac...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01G7/06A01G22/22
Inventor 李晓方汪悦远
Owner GUANGZHOU NANGUO AGRI LTD
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